Spindle-bolster



(No Model) W. .T. CARROLL.

SIPINDLE BOLSTER.

No. 340,657. Patented Apr. 27, 1886.

Wnessas: Il'lA/EI'HUY.

N. PETERS. Phowmhngnphar. wmmhm a c bolster together.

UNITED STATES PATENT OFFICE.

VILLIIAM T. CARROLL, OF WORCESTER, ASSIGNOR TO THE EUREKA SPINDLE COMPANY, OF AYER, llIASSAOI-IUSETTS.

SPlNDLE-BOLSTER.

SPECIFICATION forming part of Letters Application filed December '28, 1885.

To aZZ whom it may concern.-

Be it known that I, VVILLIAM T. CARROLL, a citizen of the United States, residing at VVorcester, in the county of \Vorcester and State of Massachusetts, have invented a new and useful Improvement in Spindle-Bolsters; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings.

My invention relates to that class of spin dlebolsters in which all the bearings for the spindle are located within such bolster; and it consists, essentially, in forming the bolster in two horizontal sections, and then connecting such sections together in a-flexible manner and by such means as will cushion. the upper section against the band-pull and againstthe jar and vibration of the frame, and thus enable the spindle to run steadily at high speed.

Referring to the, drawings, Figure l is a central sectional elevation, showing the spindle with its sleeve-whirl, the upper and lower sections of the bolster, and the bolster rail; Fig. 2, a like view showing a variation in the manner of connecting the two sections of the In Fig. 1 it will be seen that the lower section, 13, is attached to the bolster rail 0, as usual. Upon one side the flangeb of this section is elevated somewhat above the surface of the bolster-rail in order to allow it to interlock with the drop or extension d, formed on the base of the upper section, A. Between such interlocking parts is placed the packing (No model.)

1. This packing affords a vertical cushion in both directions to the upper section, and a lateral one to it against the band-pull. The two sections are further held together by the retaining-screw c, and the cushion of the upper section is made complete by means of the yielding washers 2 and 3. The depression 6 in the lower section admits the projection f formed on the under side of the upper section, and allows the footof the spindle s to be extended downward, as shown.

In Fig. 2 the arrangement of the interlocking parts I) and cl is reversed, but their function remains the same, the base of the lower section being provided with the upward extension (1, which receives the side b of the upper section, and sustains it against the bandpull, the relative positions of the retaining-screw c and packings 1, 2, and 3 remaining the same.

Having thus described my invention, what I claim isv A compound or sectional bolster consisting of a lower section adapted to be attached to the bolster-rail, as usual, and provided with an elevated flange on one side and an upper section having a supporting tube to receive the spindle, and provided with an extension adapted to interlock with said elevated flange, as set forth.

WILLIAM T. CARROLL.

In presence of H. S. HASKELL, FREDK. J. BARNARD. 

